Minor fix

Author: kepano

Minimal.css

@@ -1249,6 +1249,10 @@ button.mod-warning:hover {
   transition: background-color 0.2s ease-out;
 }
 
+.is-mobile button.mod-warning {
+  border: none;
+}
+
 .document-search, .document-replace {
   max-width: 100%;
   padding: 0;

src/css/main.css

@@ -17,3 +17,6 @@ button.mod-warning:hover {
 	box-shadow:0 2px 3px 0px var(--btn-shadow-color);
 	transition:background-color 0.2s ease-out;
 }
+.is-mobile button.mod-warning {
+	border: none;
+}